Submission #1173205

#	Time	Username	Problem	Language	Result	Execution time	Memory
1173205		davele	Rarest Insects (IOI22_insects)	C++20	Compilation error	0 ms	0 KiB

insects

#ifndef davele
#include "insects.h"
#endif // davele

#include <bits/stdc++.h>
//#define int long long
#define pii pair<int, int>
#define fi first
#define se second
#define vi vector <int>
#define pq priority_queue
#define MASK(i) (1ll<<(i))
#define BIT(x, i) (((x) >> (i)) & 1)
#define x0 ___x0
#define y0 ___y0
#define div   ___div
#define next   ___next
#define prev   ___prev
#define left   ___left
#define right   ___right
#define pos pisosi
#define pb push_back
#define pf push_front
using namespace std;

//const int mod = ;
//void add (int &a, const int&b){
//    a+=b;
//    if (a>=mod) a-=mod;
//}
//
//void sub (int&a, const int&b){
//    a-=b;
//    if (a<0) a+=mod;
//}
//
//void mul (int&a, const int&b){
//    a*=b;
//    a%=mod;
//}

template<class X, class Y>
    bool minimize(X &x, const Y&y){
        if (x<=y) return false;
        else{
            x = y;
            return true;
        }
    }
template<class X, class Y>
    bool maximize (X &x, const Y&y){
        if (x>=y) return false;
        else{
            x = y;
            return true;
        }
    }

////////////////////////////////////////////////////////////////////////////
const int lim = 2e3, limit = lim+5;

int n, inMachine[limit], ini[limit];

int min_cardinality (int N){
    n = N;
    //
    int numDiff = 0;
    for (int i=0; i<n; i++){
        move_inside(i);
        inMachine[i] = true;
        if (press_button()>1){
            move_outside(i);
            inMachine[i] = false;
            ini[i] = false;
        }
        else{
            ini[i] = true;
        }
    }
    int numCur = numDiff;
    //
    int left = 1, right = N, ret = 1;
    while (left<=right){
        int mid = (left+right)/2;
        vector <int> tmp;
        for (i = 0; i < n; i++){
            if (inMachine[i]) continue;
            move_inside(i);
            numCur++;
            inMachine[i] = true;
            if (press_button()>mid){
                move_outside(i);
                numCur--;
                inMachine[i] = false;
            }
        }
        if (numCur==(numDiff*mid)){
            ret = mid;
            left = mid+1;
        }
        else{
            right = mid-1;
            for (int i=0; i<n; i++) inMachine[i] = ini[i];
            numCur = numDiff;
        }
    }
    return ret;
}

Compilation message (stderr)

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:86:14: error: 'i' was not declared in this scope
   86 |         for (i = 0; i < n; i++){
      |              ^